For those of you who care (ie. people who aren't me) John Frost over at the Disney Blog has an update on some of the attractions, shops, and restaurants Universal is planning for the Wizarding World of Harry Potter at Islands of Adventure.
The plans call for a new Harry Potter indoor roller coaster, which will probably become the most popular ride in Orlando 5 minutes after opening. Of course, the plans also call for ridiculous things like renaming Dueling Dragons (cause it's not like that ride has been around since the park opened and is synonymous with IOA.)
Of course none of this is official because Universal is choosing not to announce it out of fear that such an announcement might actually make people interested in visiting their parks.